Quarterly Percent
1986-01-01 54.6
1986-04-01 54.6
1986-07-01 54.6
1986-10-01 54.7
1987-01-01 54.8
1987-04-01 54.8
1987-07-01 54.8
1987-10-01 54.8
1988-01-01 54.6
1988-04-01 54.3
1988-07-01 54.1
1988-10-01 53.8
1989-01-01 53.2
1989-04-01 52.8
1989-07-01 52.8
1989-10-01 53.1
1990-01-01 53.6
1990-04-01 54.1
1990-07-01 54.1
1990-10-01 54.1
1991-01-01 54.4
1991-04-01 54.6
1991-07-01 54.2
1991-10-01 53.9
1992-01-01 54
1992-04-01 54.0
1992-07-01 53.9
1992-10-01 53.9
1993-01-01 53.8
1993-04-01 53.7
1993-07-01 54
1993-10-01 54.4
1994-01-01 54.7
1994-04-01 54.8
1994-07-01 55
1994-10-01 55.4
1995-01-01 55.5
1995-04-01 55.6
1995-07-01 56
1995-10-01 56.3
1996-01-01 56.8
1996-04-01 57.4
1996-07-01 57.6
1996-10-01 57.2
1997-01-01 57.1
1997-04-01 57.3
1997-07-01 57.1
1997-10-01 56.9
1998-01-01 56.9
1998-04-01 57
1998-07-01 56.9
1998-10-01 57.0
1999-01-01 57.2
1999-04-01 57.3
1999-07-01 57.2
1999-10-01 57.3
2000-01-01 57.2
2000-04-01 57.1
2000-07-01 57.4
2000-10-01 57.7
2001-01-01 57.9
2001-04-01 58
2001-07-01 58.3
2001-10-01 58.7
2002-01-01 59.1
2002-04-01 59.1
2002-07-01 59.0
2002-10-01 58.8
2003-01-01 58.8
2003-04-01 59.1
2003-07-01 59.6
2003-10-01 59.7
2004-01-01 59.4
2004-04-01 59.3
2004-07-01 59.8
2004-10-01 60.4
2005-01-01 60.4
2005-04-01 60.7
2005-07-01 61.1
2005-10-01 61.2
2006-01-01 61.5
2006-04-01 61.7
2006-07-01 61.1
2006-10-01 61.0
2007-01-01 61.6
2007-04-01 61.8
2007-07-01 61.6
2007-10-01 61.8
2008-01-01 62.0
2008-04-01 62.0
2008-07-01 62.4
2008-10-01 62.5
2009-01-01 62.1
2009-04-01 61.9
2009-07-01 62.0
2009-10-01 61.8
2010-01-01 61.6
2010-04-01 61.7
2010-07-01 61.7
2010-10-01 61.8
2011-01-01 62.0
2011-04-01 62.2
2011-07-01 62.0
2011-10-01 62.0
2012-01-01 62.3
2012-04-01 62.6
2012-07-01 62.6
2012-10-01 62.4
2013-01-01 62.2
2013-04-01 62.3
2013-07-01 62.7
2013-10-01 63.0
2014-01-01 63.0
2014-04-01 63.1
2014-07-01 63.6
2014-10-01 64.1
2015-01-01 64.0
2015-04-01 63.5
2015-07-01 63.1
2015-10-01 63.0
2016-01-01 63.7
2016-04-01 64.3
2016-07-01 64.8
2016-10-01 65.2
2017-01-01 65.3
2017-04-01 65.3
2017-07-01 65.5
2017-10-01 65.7
2018-01-01 65.8
2018-04-01 66.0
2018-07-01 66.2